<template>
	<view>
		<!-- 使用自定义搜索组件 -->
		<view class="search-box">
			<my-search @click="gotoSearch"></my-search>
		</view>
		
		<!-- indicator-dots: 是否显示面板指示点 autoplay: 是否自动切换 interval: 切换时间间隔 duration: 滑动动画时长 circular: 是否采用衔接滑动 -->
		<!-- 轮播图 -->
		<swiper class="swiper" :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<swiper-item v-for="(item, index) in swiperList" :key="index">
				<navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
					<image :src="item.image_src"></image>
				</navigator>
			</swiper-item>
		</swiper>
		
		<!-- 分类导航 -->
		<view class="nav-list">
			<view class="nav-item" v-for="(item, index) in navList" :key="index" @click="navClickHandler(item)">
				<image :src="item.image_src" class="nav-img"></image>
			</view>
		</view>
		
		<!-- 楼层区域 -->
		<!-- 楼层列表 -->
		<view class="floor-list">
			<!-- 每一个楼层 item 项 -->
			<view class="floor-item" v-for="(item, index) in floorList" :key="index">
				<!-- 楼层标题 -->
				<image :src="item.floor_title.image_src" class="floor-title"></image>
				<!-- 楼层图片 -->
				<view class="floor-image-box">
					<!-- 左侧大图的盒子 -->
					<navigator class="left-img-box" :url="item.product_list[0].url">
						<image
							:src="item.product_list[0].image_src"
							:style="{ width: item.product_list[0].image_width + 'rpx' }"
							mode="widthFix">
						</image>
					</navigator>
					<!-- 右侧四个小图的盒子 -->
					<view class="right-img-box">
						<navigator
							class="right-img-item"
							v-for="(item2, i2) in item.product_list"
							:key="i2"
							v-if="i2 !== 0"
							:url="item2.url">
							<image
								:src="item2.image_src"
								mode="widthFix"
								:style="{ width: item2.image_width + 'rpx' }">
							</image>
						</navigator>
					</view>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
	import tabbarBadge from '@/mixins/tabbr-badge.js'
	export default {
		mixins: [tabbarBadge],
		data() {
			return {
				swiperList: [], // 存放轮播图列表
				navList: [], // 分类导航列表
				floorList: [], // 楼层列表
			}
		},
		methods: {
			async getSwiperList() {
				const { data: res } = await uni.$http.get('/api/public/v1/home/swiperdata')
				// 请求失败
				if (res.meta.status !== 200) return uni.$showMsg()
				// 请求成功
				this.swiperList = res.message
			},
			async getNavList () {
				const { data: res } = await uni.$http.get('/api/public/v1/home/catitems')
				if (res.meta.status !== 200) return uni.$showMsg()
				this.navList = res.message
			},
			navClickHandler (item) {
				if (item.name === '分类') {
					// 要跳转到tabbar，只能调用uni.switchTab
					uni.switchTab({
						url: '/pages/cate/cate'
					})
				}
			},
			// 获取楼层数据
			async getFloorList () {
				const { data: res } = await uni.$http.get('/api/public/v1/home/floordata')
				if (res.meta.status !== 200) return uni.$showMsg()
				
				// 对数据进行处理
				res.message.forEach(item => {
					item.product_list.forEach(item2 => {
						item2.url = '/subpkg/goods_list/goods_list?' + item2.navigator_url.split('?')[1]
					})
				})
				
				this.floorList = res.message
			},
			gotoSearch () {
				uni.navigateTo({
					url: '/subpkg/search/search'
				})
			}
		},
		onLoad() {
			// 在小程序页面刚加载的时候，调用获取轮播图数据的方法
			this.getSwiperList()
			this.getNavList()
			this.getFloorList()
		}
	}
</script>

<style lang="scss">
swiper {
	height: 330rpx;
	.swiper-item,
	image {
		width: 100%;
		height: 100%;
	}
}
.nav-list {
	display: flex;
	justify-content: space-around;
	margin: 15px 0;
	.nav-img {
		width: 128rpx;
		height: 140rpx;
	}
}
.floor-title {
	width: 100%;
	height: 60rpx;
}
.floor-image-box {
	display: flex;
	padding-left: 10rpx;
	.right-img-box {
		display: flex;
		flex-wrap: wrap;
		justify-content: space-around;
	}
}
.search-box {
	// 设置定位效果为吸顶
	position: sticky;
	// 吸顶的位置
	top: 0;
	// 提高层级，防止被轮播图覆盖
	z-index: 999;
}
</style>
